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drm/i915/display: Fix Panel Replay vblank enable workaround

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Currently workaround is not applied when vblank is enabled on crtc that
needs the workaround if vblank is already enabled for another crtc that
doesn't need the workaround. Fix this by increasing counter only if crtc
needs the workaround.

Fixes: aa451abcff ("drm/i915/display: Prevent DC6 while vblank is enabled for Panel Replay")
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241009134225.1322820-2-jouni.hogander@intel.com
This commit is contained in:
Jouni Högander 2024-10-09 16:42:25 +03:00
parent 54ab6d160d
commit 90380119ef
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/i915/display/intel_display_irq.c
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@ -1447,7 +1447,7 @@ int bdw_enable_vblank(struct drm_crtc *_crtc)
if (gen11_dsi_configure_te(crtc, true))
return 0;
if (display->irq.vblank_wa_num_pipes++ == 0 && crtc->block_dc_for_vblank)
if (crtc->block_dc_for_vblank && display->irq.vblank_wa_num_pipes++ == 0)
schedule_work(&display->irq.vblank_dc_work);
spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
@ -1478,7 +1478,7 @@ void bdw_disable_vblank(struct drm_crtc *_crtc)
bdw_disable_pipe_irq(dev_priv, pipe, GEN8_PIPE_VBLANK);
spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
if (--display->irq.vblank_wa_num_pipes == 0 && crtc->block_dc_for_vblank)
if (crtc->block_dc_for_vblank && --display->irq.vblank_wa_num_pipes == 0)
schedule_work(&display->irq.vblank_dc_work);
}